INTRODUCTION. 6 



were taken during this cruise of the " Hyaena," and the collec- 

 tion of animals obtained was very considerable. 



On the 23rd May, the dredge was first let over on the 

 western end of the Constable Bank, near Llandudno. At 

 this spot three hauls were taken in depths of from six to 

 seven fathoms, resulting in the capture of various species 

 of Hydroids and Polyzoa, Pectinaria belgica, Corystes 

 cassivelaimus, Thia polita, and Lolif/o media. Later on in 

 the same day, several hauls of the trawl were taken a 

 short distance off the Great Ormes Head, in depths of 

 from seven to eight fathoms. Amongst the animals obtained 

 were : — 



Hydroida. — Coppinia arcta, Tubulai^ia i7idivisa, 

 'PohYCB.MT A. — Sabellaria alveolata. 

 EcHiNODERMATA. — Solastev papposci, Echinocyamns 

 pusillus, Echinocardium cordatiwi, Cucumaria pen- 

 tactes. 

 Crustacea. — Hyas coarctatus, Stenorhynchus rostratiis^ 



Piliimnus hirtellus, and Portunus depurator. 

 MoLLUSCA. — Mactra solida (large), Mactra stultorum 

 (pale variety), Anomia patelliformis^ Pecten pusioy 

 Pecten varius, Pholas Candida, Trochiis zizyphinus, 

 Pleurotoma turricida, Fusus gracilisy Murex erina- 

 ceus, and Dendronotus arhorescens. 

 On the 24th of May, operations were commenced to the 

 north of Puffin Island,* where several successful hauls were 

 taken in depths of from eleven to fourteen fathoms. 



Amongst other species obtained in this locality were : — 

 Crustacea. — Mysis spiritus, Pandalus brevirostris, 

 Hippolyte cranchii, Crangon trispinosus and (7. 

 fasciatus, Hippolyte pusiola, Portunus corrugatus 

 and Eurynome aspera, 

 Pycnogonida. — Pephredo hirsuta(?)y AcheUa echinata 

 * See Chart, PI. XI. 



